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Systems, Man and Cybernetics, 1990. Conference Proceedings., IEEE International Conference on

Date 4-7 Nov. 1990

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Displaying Results 1 - 25 of 213
  • 1990 IEEE International Conference on Systems, Man and Cybernetics Conference Proceedings (Cat. No.90CH2930-6)

    Publication Year: 1990
    Request permission for commercial reuse | PDF file iconPDF (24 KB)
    Freely Available from IEEE
  • Hierarchical process modeling of submarine command and control systems

    Publication Year: 1990, Page(s):58 - 60
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    It is shown how a recently developed methodology called hierarchical process modeling (HPM) can be utilized to improve the reliability of submarine command and control systems (CCSs). In HPM the subsystems under study are represented by verbs, and the flows between them are represented by nouns. The model is made up of a series of diagrams, all of which carry the CCS label and a number identifying... View full abstract»

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  • Voltage stability estimation

    Publication Year: 1990, Page(s):94 - 97
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    The proximity of power systems to voltage collapse can be calculated for any of the buses using to the theory of bifurcation and multiple solutions to power flow behavior, in terms of system indicators such as real and reactive power. These indicators can be measured to identify voltage collapse. The application of topology space theory for describing voltage collapse phenomena is effectively demo... View full abstract»

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  • System reconfiguration: a graph automata approach

    Publication Year: 1990, Page(s):53 - 57
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    A system comprised of a finite set of components, where between any pair of components it is assumed that some relationship may or may not exist, is considered. Such systems are commonly modeled as graphs, with the nodes and the edges of the graph representing the components and the relationship between the components, respectively. Given such a system and its graph theoretical model, a graph-fini... View full abstract»

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  • Operator modeling in civil aviation

    Publication Year: 1990, Page(s):512 - 514
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    A model of the pilot-flying and the pilot-not-flying operation of a Boeing 727 aircraft is described. The modeling methodology is the operator function model (OFM), a prescriptive model that specifies nondeterministically a set of plausible operator functions and related activities given current system state and recent operator actions. As such, it provides two necessary components of a computer-b... View full abstract»

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  • Speed-accuracy trade-off of arm movement predicted by the cascade neural network model

    Publication Year: 1990, Page(s):32 - 37
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    The cascade neural network as a model of the brain motor control of multijoint arms was studied. A computer simulation of the model as implemented and its trajectory-formation properties were examined. It was found that the cascade model can calculate the exact minimum torque-change trajectory only when the penalty method is used (i.e. the electrical conductance of the gap junction in the model is... View full abstract»

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  • An adaptive real time training system for beautiful handwriting of Japanese letters

    Publication Year: 1990, Page(s):88 - 93
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A real-time training system for acquiring skills for writing Japanese letters is presented. This system uses character recognition techniques. The system can evaluate, coach, and explain the skills of penmanship. The system stores a handwritten Japanese character database and the knowledge of writing skill in a rule-based paradigm. The system can supervise how the user writes/inputs letters on the... View full abstract»

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  • Modeling visual objects based on accidental alignment

    Publication Year: 1990, Page(s):539 - 541
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    A scene modeling system that preserves tangency and connectivity information is demonstrated. The model is built using an algebra of qualitative spatial relations that describes relative positions between different objects of a scene or among different components of the same object. The representation is qualitative in the sense that it distinguishes three qualitative spatial states: no contact, t... View full abstract»

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  • A model for the rising fastball and breaking curve ball

    Publication Year: 1990, Page(s):924 - 926
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    A model showing that the rising fastball and the breaking curve ball are perceptual illusions caused by the batter misestimating the speed of the pitch is presented. The model uses only visual parameters that have been psychologically validated. It is robust with respect to its parameter values. The most sensitive parameter is the model's input, the estimated speed of the pitch View full abstract»

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  • FORS: a system for flexible design

    Publication Year: 1990, Page(s):724 - 726
    Cited by:  Patents (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    The structure of FORS, a software tool that deals primarily with the area of collaboration and secondarily with human computer interfaces and record keeping, is described. It also deals with tool acquisition. FORS implements the network model of collaboration and permits dynamic reconfiguration of tools and aspects. A detailed description of its four modules-an aspect library, a tool library, a de... View full abstract»

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  • Evaluation of flexibility in manufacturing systems

    Publication Year: 1990, Page(s):49 - 52
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    Studies devoted to modeling and measuring the flexibility of manufacturing systems are reviewed and discussed. Some flexibility measures are then proposed. One is routing flexibility, i.e. flexibility in the sequence of product processing operations. The other measures the consequences of adding new products or increasing the production volumes. Data necessary for both measures are almost determin... View full abstract»

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  • Graphical interfaces for cooperative planning systems

    Publication Year: 1990, Page(s):508 - 511
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    Enroute flight planning (selecting alternate routes or destinations due to unanticipated weather, traffic, malfunctions, etc.) is being used as the context for studying the design of cooperative problem-solving systems. A testbed, Flight Planner, for studying computer aids for enroute flight path planning, is described. Its design is based on a cognitive task analysis of five airline flight crews ... View full abstract»

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  • Learning tracking controllers for unknown dynamical systems using neural networks

    Publication Year: 1990, Page(s):29 - 31
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    A tracking control architecture based on artificial neural networks is described. The architecture comprises two separate multilayer feedforward networks with tapped delay lines. One network is trained to represent the forward dynamic model of an unknown dynamical system, while another network learns to act as a feedforward controller to control the response of the unknown system to follow desired... View full abstract»

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  • Second-order conceptual clustering of temporal events

    Publication Year: 1990, Page(s):599 - 604
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    The characteristics of each detection of seismic activity by networks of sensors throughout the world and the time interval between detections are used to group a subset of detections, which then corresponds to a seismic event. A software system that automates the generation of descriptions that can be used to classify common seismic events is described. This learning program, called SEISMO, obser... View full abstract»

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  • A knowledge-based reliability analysis system

    Publication Year: 1990, Page(s):84 - 87
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    Probabilistic reliability analysis is reviewed, and an expert system that assists a reliability engineer in performing risk analysis for complex systems is presented. The system releases the reliability engineer from the repetitive tasks of enumerating support states and modifying the primary failure equation and assists in organizing target system descriptions into an explicit model and in derivi... View full abstract»

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  • WISE: an intelligent interface for user modification of applications

    Publication Year: 1990, Page(s):637 - 639
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    The Workstation-based Iconic Script Editor (WISE), an experimental prototype system that was motivated by the need for software tools to support flexible applications that can be modified in the field by a knowledgeable nonprogrammer, is presented. An example of the use of WISE is given. The architecture of WISE is described, and it is shown how it can be used to support a user's higher-level task... View full abstract»

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  • Facets of adaptability

    Publication Year: 1990, Page(s):800 - 801
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    Some of the many facets of adaptability are discussed from the points of view of both the human and the computer. Attention is focused on the questions of how much adaptation is appropriate for each application, who adapts (man, machine, or both), and where the control is housed. Examples for both the human and computer sides of the interface are given View full abstract»

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  • Contour shape matching by a constraint satisfaction network

    Publication Year: 1990, Page(s):536 - 538
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    The contour shape-matching task is formulated as a constraint satisfaction problem and solved using a Hopfield net. Constraints that are intrinsic to the shape-matching task are coded in the network interconnection weights. Direct evidence obtained from the observed data, as gauged by a local shape measure, are provided as the external input to the network. The local shape measure used is based on... View full abstract»

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  • Simulation of a phosphene field based visual prosthesis

    Publication Year: 1990, Page(s):921 - 923
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    A visual prosthesis for the blind that is based on electrical stimulation of the visual cortex requires the development of an array of electrodes. To establish design specifications for such an electrode array, psychophysical experiments were concluded with normally sighted subject wearing a portable phosphene simulator. The simulator consists of a small video camera, a monitor masked by an opaque... View full abstract»

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  • Software engineering globalization and localization

    Publication Year: 1990, Page(s):491 - 495
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    The development of software under the constraints of different natural languages and local customs and cultures is addressed. Three questions are examined: how to make the core of the software program capable of handling data given in a different natural language without any loss of functionality, how to adapt the user interface so that it becomes a natural vehicle of communicating information wit... View full abstract»

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  • An operator aid for monitoring and trend detection

    Publication Year: 1990, Page(s):721 - 723
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    Monitoring of current system status and trends in system performance is addressed. In particular, the development of an aid that would provide on a single display gauge an integrated composite representation of the current values of several sensors is discussed. The current values of a set of sensors are viewed as a point in multidimensional space. The technique of multidimensional scaling is prop... View full abstract»

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  • A tool for simulating neural models

    Publication Year: 1990, Page(s):46 - 48
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    SFINX, a simulation environment for modeling a wide spectrum of neural architectures with both regular and irregular connectivity patterns, is discussed. SFINX is not based on a specific neural paradigm; it supports a variety of computational models ranging from simple convolution filters such as difference-of-Gaussians receptive fields used in image processing to learning paradigms such as backwa... View full abstract»

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  • Design and evaluation of a tactical decision aid

    Publication Year: 1990, Page(s):812 - 814
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    Design considerations and a part-task evaluation methodology for a submarine weapon-employment aid are discussed. The domain of SALVO is submarine torpedo attack, specifically engagements in which multiple torpedoes are fired against multiple targets. The aid provides assessment and planning features. These features are included as modules in a software toolbox, which the decision maker can call u... View full abstract»

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  • Human-computer cooperative problem solving. I. A case study of an expert system for real-time monitoring

    Publication Year: 1990, Page(s):505 - 507
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    The mission operations room for NASA's Cosmic Background Explorer (COBE) satellite is the first of its kind to use an expert system to work with the human operators. This expert system monitors the communication links between the spacecraft and the mission operations room, diagnoses problems, and offers advice. The authors describe the domain of satellite ground control, the features of the expert... View full abstract»

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  • Learning temporal patterns in recurrent neural networks

    Publication Year: 1990, Page(s):170 - 172
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    General learning algorithms for recurrent neural networks that can be used for both discrete-time and continuous-time models are described. They are based on the notion of the derivatives of mappings between functions of time. Simulation results for learning rhythmical sequences are shown. The method can also be applied to networks of higher-order neuron models and multiple time delay connections View full abstract»

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